Part of Byron Hwy. closed after fatal crash

A head-on collision between a semi and a sedan killed a young woman and a child on Friday afternoon.

The victims' identities were not immediately released, pending notification of their relatives, but KTVU-TV reports the child was under 10 years old. Details on the cause of the accident were not immediately available.

East Contra Costa County fire officials say the crash was reported about 3:19 p.m. on Byron Highway and Clifton Court.